142608551 has 2 divisors, whose sum is σ = 142608552. Its totient is φ = 142608550.

The previous prime is 142608539. The next prime is 142608559. The reversal of 142608551 is 155806241.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 142608551 - 2¹⁰ = 142607527 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (142608559) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71304275 + 71304276.

It is an arithmetic number, because the mean of its divisors is an integer number (71304276).

Almost surely, 2^142608551 is an apocalyptic number.

142608551 is a deficient number, since it is larger than the sum of its proper divisors (1).

142608551 is an equidigital number, since it uses as much as digits as its factorization.

142608551 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9600, while the sum is 32.

The square root of 142608551 is about 11941.8822218275. The cubic root of 142608551 is about 522.4545579857.

The spelling of 142608551 in words is "one hundred forty-two million, six hundred eight thousand, five hundred fifty-one".